Mattand wrote:
1. Are the Cheaper "all plastic " models any good?
2. Is it worth upgrading to metal tracks / idlers and sprockets?
3. Should I be looking for a metal gearbox or are the standard ones perfectly ok?
4. Are there any differences or benefits in getting a Heng long or Taigen?
Hello
ad1-2-3. There is nothing wrong with a plastic model for the beginning of your adventure with rc tank - if you have a small budget. You can start with cheap plastic,but you should have plan to upgrade to metal parts that will wear out / break the fastest:
- plastic suspension and road wheels
- plastic track's
- plastic sprockets
- plastic idler wheels
- plastic gears/gearbox (I recommend replacing with Taigen - they have versions with steel gears and axles with bearings. You can choose a variant with high speed or high torque)
Just remember when buying a model with plastic drive elements that you will not run into tall grass and difficult terrain (plastic gears / clutch will disengage the drive under heavy load). However, you should be able to handle flat and relatively firm ground (but avoid sand). So does plastic tracks - they may not withstand maneuvering in grass.
ad4. Are there any differences or benefits in getting a Heng long or Taigen?
Here you should find the answer:
viewtopic.php?f=1&t=31015
Summarizing. Do not expect from a model with plastic suspension and drive elements that it will last the same as a metal one and that you will easily enter any terrain ( although my son succeeds ... but I constantly repair / replace something

)